-40 minus -20 is -20.
-11 minus -20 is 9
10 minus -20 is 30.
-14 minus -2 is -12
-20 -(-5) = -15 ie -(-5) = +5 therefore -20 +5 =15 (two double minuses = a positive)
-34 minus -20 is -14
-40 minus -20 is -20.
-11 minus -20 is 9
Negative 8 minus 12 is negative 20.
10 minus -20 is 30.
-20 negative 20 minus 20
- 20 - 38 - (-53) = -58 + 53 = -5
19.
-14 minus -2 is -12
20 The use of the two negatives works out to an addition.
-20 -(-5) = -15 ie -(-5) = +5 therefore -20 +5 =15 (two double minuses = a positive)
negative 20